90785-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90785-83-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,7,8 and 5 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90785-83:
(7*9)+(6*0)+(5*7)+(4*8)+(3*5)+(2*8)+(1*3)=164
164 % 10 = 4
So 90785-83-4 is a valid CAS Registry Number.
90785-83-4Relevant articles and documents
N-Quaternary Compounds. Part LVI. 3-Hydroxyquinoline-2(1H)-thiones and Their N-Vinylation
Johnsen, Bjoern A.,Undheim, Kjell
, p. 109 - 112 (2007/10/02)
A convenient method for the synthesis of 2,3-dihydroxyquinolines is described.These intermediates are converted to 1,2-dihydrothiazoloquinolinium-4-olates.Ring opening reactions of the latter to the isomeric N- and S-vinylquinolines are affected by
